Ultrashort optical-vortex pulse generation in few-cycle regime

DOI IR (HANDLE) HANDLE Web Site PubMed 13 Citations 23 References Open Access

Description

We generated a 2.3-cycle, 5.9-fs, 56-μJ ultrashort optical-vortex pulse (ranging from ～650 to ～950 nm) in few-cycle regime, by optical parametric amplification. It was performed even by using passive elements (a pair of prisms and chirped mirrors) for chirp compensation. Spectrally-resolved interferograms and intensity profiles showed that the obtained pulses have no spatial or topological-charge dispersion during the amplification process. To the best of our knowledge, it is the first generation of optical-vortex pulses in few-cycle regime. They can be powerful tools for ultrabroadband and/or ultrafast spectroscopy and experiments of high-intensity field physics.

Journal

  • Optics Express

    Optics Express 20 (17), 18986-18993, 2012-08-13

    Optical Society of America

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